57385931 has 8 divisors (see below), whose sum is σ = 60827760. Its totient is φ = 53951488.

The previous prime is 57385901. The next prime is 57385961. The reversal of 57385931 is 13958375.

It is a happy number.

It is an interprime number because it is at equal distance from previous prime (57385901) and next prime (57385961).

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 57385931 - 2¹⁰ = 57384907 is a prime.

It is a super-2 number, since 2×57385931² = 6586290153473522, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (57385901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29435 + ... + 31323.

It is an arithmetic number, because the mean of its divisors is an integer number (7603470).

Almost surely, 2^57385931 is an apocalyptic number.

57385931 is a deficient number, since it is larger than the sum of its proper divisors (3441829).

57385931 is a wasteful number, since it uses less digits than its factorization.

57385931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3693.

The product of its digits is 113400, while the sum is 41.

The square root of 57385931 is about 7575.3502229270. The cubic root of 57385931 is about 385.7167308814.

The spelling of 57385931 in words is "fifty-seven million, three hundred eighty-five thousand, nine hundred thirty-one".